(;AB[bs]AB[br]AB[cq]AB[cp]AB[co]AB[dn]AB[dm]AB[em]AB[fm]AB[gm]AB[gr]AB[gq]AB[gp]AB[go]AB[gn]AB[er]AB[eq]AB[ep]AW[cs]AW[dr]AW[dq]AW[dp]AW[do]AW[en]AW[fn]AW[fo]AW[fp]AW[fq]AW[fr]AW[fs]C[8. White dies]AP[goproblems]
(;B[ds];W[es];B[cr]LB[ds:1]LB[es:2]LB[cr:3]C[Black attacks from within at 1. If White captures, Black 3 gives him a common dead shape.
RIGHT])
(;B[cr];W[ds]LB[cr:1]LB[ds:2]C[To attack from without is to earn White's undying gratitude, This shape is a seki. CHOICE]))